Closure



Nov'. 6, 1928 Lwl F. G. wikis-mom L CLosURE Original Filed March 3l,1927 INVENTOR. M 7M BY A TTORNEYS.

Patented INOV. 6, 1928.

' UNITED STATES PATENT orifice.

FRANK G. WIKSTROM, OF BROOKLYN, NEW YORK, A-SSIGNOR TO H ADWIK MFG. CO.INC., I F BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

-Orignal application led March 31, 192,7, Serial No. 179,733. Dividedand thuis application filed anuary 13,

1928. Serial N0. 246,438;

This invention relates to closures forcontainers, and is herein shownapplied to` a metallic barrel head, although it may, of course, be usedon any container, wall.

f One of the objects of the invention is to provide an improved closure-or cap in which the component elements are so designed as to enablethem to be economically and otherwise satisfactorily made by stampingoperations and to provide a closure which is strong,

durable and reliable in use.

Thisapplication 4is a divisiongof my copending application, Serial No.179,733, led March 31,1927.

The inventionwill be understood from the following description. taken inconnection with the-accompanying drawingsin which Figure- 1 is a planView of one form of cap;

Figure 2 is a sectional view taken on line.

2-2 of Figure 1 showing the cap threaded into a sput or capl seatinterlocked with a container wall; and Figure 3 is a central verticalsectional View of a modified form of cap also adapted for screw-threadedengagement with the sput of Figure 2.

Referring to the drawings, the numeral 10 indicates a barrel headprovided with a bung sput 11, herein shown as constructed from sheetmetal and having interlocking en; gagement with the barrelv head `at Thesput 11 isprovided with a dependlng lnternal screw-threaded .flange .13,adapted to receive the screw-threaded element of the closures embodyingthis invention. This sput and sput construction are described andclaimed in my co-pending application, Serial No. 222,409, filedSeptember 28, 1927.

Referring to Figures 1 and 2, the numeral 15 indicates a stamped met-alcap which includes a cover or top member 16 having an outwardly anddownwardly projecting circularshoulder 18, carryinga horizontalgasket-supportingportion 19 from which downwardly projects an annularflared skirt 20. The top member 16^is provided with an upwardlyprojecting wrench-receiving portion 22 to which a suitable tool, such asa wrench, may be applied to screw the. cap down into closing position,in the sput.

'With the top member 16 is associated a sheet metal cup-shaped bottommember v24 having an end wall and an externally screw.- threadedcylindrical portion 26. The bottom member 24 is adapted to snugly t intothe depressed portion of the top member 16 bounded by the circularshoulder 18 so as to center said bottom member with respect to the topmember 16 and facilitate assembling of these two parts. v

In order t'o establish an interlocking con'- nectionbetween the bottommember 24 and the top member 16, the end wall of the bottom member isprovided with an upwardlyextending drawncentral portion 26 adapted toenter the upwardly projecting portion 22 of the top member 16. Inyaddition to the re- V inforcement against turning which is afforded byreason/,of such interlocking, the cupshaped bottom .member 24 andtopmember 16 are further secured against relative rotation as well asseparation by spot Weldingv these two parts together at spaced intervalsas indicated at 28.

By applying'a suitable tool, such as a wrench, to the square portion 22of the to member 16, the cap may be easily screwe 'down into the sput 11so that the gasket supporting portion 19 of the top member 16 f isforced into firm engagement with a suitable gasket 29 surrounding thecup-shaped bot-l tom member 24 and such` gasket is in turn forced intointimate engagement with the gasket seat 30 of the sput 11. If desired,the outwardly and downwardly projecting annular flared skirt 20 may beprovided at intervals near its edge with perforations 31 `adapted forthe reception of a suitable sealing. wire 32 which may be anchored tothe container wall bya yoke 33 Jwelded or otherwise suitably connectedto the container wall.

The cap shown in Figure 3 is also adapted for use in connectionv withthe sput shown in Figure 2 and is of substantially the same constructionas the cap shown in Figures land 2 except that the bottom member 24instead' 'of being closed at its topf, is provided with a which serve inconjunction with the tongues 34 to yresist turning of the bottom member24 with respect to the cover 16 and also to secure the members 16 and 24against separation.

It will be understood that changes and modifications may be made in theconstruction shown and above particularly described without departingfrom the spirit of the invention or the scope of the following claims. A

What is claimed is:

l. A closure comprising a. sheet metal top member having an upwardlyprojecting wrench-receiving central portion, and an outwardly extendinggaslreteupporting port-ion and a sheet metal bottom member having anexternally threaded cylindrical portion and an upwardly extendingcentral portion adapt ed to enter the upwardly projectingwrenchreceiving portion of said top member; said top and'bottom membersbeing welded together.

2. A closure comprising a sheet metal top member having an upwardlyprojecting wrench-receiving cent-ral portion, and an outwardly extendinggasket supporting portion; and a bottom member having an externallyt-hreaded cylindrical portion and an upwardly extending central portionsubstantially conforming to the lateral internal configuration of thewrench receiving portion of said top member and nesting therein; saidtop and bottom members being welded together.

3. A closure comprising a sheet metal top member having an upwardlyprojecting wrench-receiving central portion, an outwardly and downwardlyextending circular shoulder portion, and a. gasket-supporting portionextending outwardly from said shout der portion; and a bottom memberhaving an externally threaded cylindrical portion having a diametersubstantially equal to the internal diameter of the shoulder portion ofsaidtop member, and provided with an upwardly extending central portionadapted to enter the upwardly projectingr wrench-receiving portion ofsaid top member; said top and bottomv members being welded togethen a.A. closure comprising a sheet metal top member having an vupwardlyprojecting wrench-receiving central portion, an outwardly and downwardlyextending circular' shoulder portion, and a, gasket supporting portionextending outwardly from said shoulder portion; and a bottom memberhaving an externally threaded cylindrical portion having a diametersubstantially equal to the internal diameter of the shoulder portion ofsaid top member and provided with an upwardly extending central portionsubstantially conforming to the lateral internal config'- uration of thewrench receiving portion of said top member and nesting therein; saidtop and bottom members being welded together.

ln testimony whereof, I have affixed my signature to this specification.

FRANK Gf. ,wIKsTnoMl

